Determination of optimal transonic hotwire probes in constant temperature anemometry

Efim Yablochkin, Beni Cukurel

Research output: Contribution to conferencePaperpeer-review

Abstract

A simple optimization method is proposed for multi-wire CTA probe design. The optimization computes the sensitivities to density, velocity and total temperature for each wire, based on empirical Nu-M-Re and η-M-Re correlation for heated cylinders in compressible flow. This correlation is a reasonable estimator for the compressibility effect, enabling the reduction to M-independent relation. The output is a set of optimal wire temperatures and diameters, recommended for probe production. Following the manufacturing, it is necessary to calibrate each wire for Re-Nu relationship and apply together with the empirical compressibility relation. The technique allows the use of a single probe with multiple wires across a range of transonic flows with various conditions.

Original languageEnglish
StatePublished - 2017
Event57th Israel Annual Conference on Aerospace Sciences, IACAS 2017 - Tel Aviv and Haifa, Israel
Duration: 15 Mar 201716 Mar 2017

Conference

Conference57th Israel Annual Conference on Aerospace Sciences, IACAS 2017
Country/TerritoryIsrael
CityTel Aviv and Haifa
Period15/03/1716/03/17

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering

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